ML19340C353
| ML19340C353 | |
| Person / Time | |
|---|---|
| Site: | 05000363 |
| Issue date: | 10/31/1980 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Finfrock I JERSEY CENTRAL POWER & LIGHT CO. |
| References | |
| NUDOCS 8011140588 | |
| Download: ML19340C353 (1) | |
Text
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".i NUCLEAR REGULATORY COMMISSION l
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Docket No. 50-363
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Jersey Central Power and Light Company 6,y,,'
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ATTN:
Mr. I. R. Finfrock, Jr.
Vice President L4 '
260 Cherry Hill Road 5
C ;j Parsiopany, New Jersey 07054
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.a Gentlemen:
l The enclosed IE Information Notice No. 80-39, " Malfunctions of Solenoid Valves Manufactured by Valcor Engineering Corporation," is forwarded to you for infomation.
No written response is required.
If you desire additional information regarding this matter, please contact this office.
Sincerely,
~
Bo se H. Grier Director
Enclosures:
1.
IE Information Notice No. 80-39 2.
List of Recently Issued IE Information Notices CONTACT:
D. L. Ca;;hton (215-337-5256) cc w/encls:
M. K. Pastor, Project Manager 8011140 ygeg t
SSINS No.:
6835 Accessien No.:
8008220245 IN 80-39 UNITED STATES NUC!2AR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D. C. 20555 October 31, 1980 IE INFORMATION NOTICE NO. 80-39: MALFUNCTION OF SOLENOID VALVES MANUFACRJRED BY VALCOR ENGINEERING CORPORATION PURPOSE:
The intent of this Information Notice is to alert holders of construction permits and operating licenses for nuclear power plants of a potentially generic problem involving the malfunctioning of certain solenoid valves manu-factured by the Valcor Engineering Corporation (Valcor).
The solenoid valves so involved are designated as Valcor Valve Model No. V52600-554-1.
Valcor has informed us that these valves have only been supplied to the McGuire facility; however, since these valves were substituted for scienoid valves of another manufacturer that did not meet the requirements of IE Bulletin.No. 79-01 and its amendments, licensees and holders of construction permits should take into account the problem identified in this Information Notice prior to making any similar substitution.
BACsiROUND:
By TWX dated June 27, 1980, Valcor submitted a preliminary 10 CFR Part 21 Report addressing the malfunctioning of Valcor solenoid valves at the McGuire facility.
The malfunctioning valves have been identified as Valcor Valve Model No. 52600-554-1.
This TWX was subsequently followed by a letter dated July 3,1980, transmitting a more detailed Part 21 Report entitled," Quality Assurance Report", a copy of which is attached hereto as Enclosure No. 1.
In brief, the aralfunction appears to be an intermittent type wherein the valve fails to cycle from OPEN to CLOSE to OPEN immediately after a sustained period of operation in the energized (OPEN) mode.
Although the valves are rated for
" continuous operation", Valcor contends that the valves were not designed to meet the operating conditions requiring the immediate cycling from QPEN to CLOSE to CPEN after a sustained period of continuous energi:ation.
A major source of the problem, therefore, may be a misunderstanding of the term
" continuous operation".
By letter dated July 14, 1980 to Duke Power Company, Valcor transaitted its recommendations in this matter entitled, " Outline -
Suggested Modification Procedures", a copy of which is attached hereto as Enclosure No. 2.
Enclosures:
1.
Quality Assurance Report DUPLICATE DCCUMENT Entire document previcusly entered into system under:
ANO h h h M d No. of pages:
h
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